Improvement in wind-wheels



Ulvrrnuo-l S'rA'rns PATENT Genion `JACOB LONGYEAR AND DANIEL W. CLARK, OF GRASS LAKE, MICHIGAN.

IMPROVEMENT iN sWiND-l/l/H EELS.

Specification forming part of Letters Patent No. 222,515, dated December 9, 1879 application tiled July 26, 1879.

To all whom it may concern:

Be it known that we, J AGOB LONGYEAR and DANLEL W. CLARK, of Grass Lake, in the county of Jackson and State of Michigan, have invented certain new and useful Improvements in Wind-Wheels; and we do 'hereby declare that the following is a full, clear, and exact description of the construction and operation ofthe same, reference being had to the annexed drawings, making a part of this specification, and to the letters and figures of 4reference marked thereon.

Figure l of the drawings is a representation of a side elevation, partly in section, of our wind-wheel; and Figs. 2, 3, and 4 are detail views `of the same. p

,The nature of our invention consists in the construction and arrangement of a windmill,

`as will be hereinafter more fully set forth.

The annexed drawings, to which reference is made, fullyillustrate our invention.

l A represents the bed-plate for the turn-table of the windmill. This bed-plate is provided with a hub, B, in which is made a circumferential groove, a, forming a track for the rollers b b, that support the turn-table, and on which it turns.

In the under face of the annular bed-plate A are made two radial dovetailed grooves, diametrically opposite to each other.

. The bed-plate A is connected to the tower E by entering the wedge-shaped heads of the pins C C in said grooves, and the pins are securely bolted between the uprights E of the tower. D represents the turn-table, which is constructed to it over the hub B, and forms a cover for the rollers b, said rollers being placedon the inner smooth ends of screws d d, passed through the turn-table at equal distances.

We use, preferably, four rollers 5 but we do not confine ourselves exclusively to this number.

rlhe turn-table D is formed with-arms, which constitute suitable bearings for the main shaft F. On this shaftv the wind-wheel is secured, said wheel consisting of a hub, G, with radial spokes c' c, cast fast therein. The spokes are connected by a rim or circle, f, and the wings H H are bolted to the same. rlhe wings are made curved, as sho'wn, and connectedat the back by a circular brace, h. Ihey are further,

strengthened by a series of braces, c', running from a small hub or collar, 7c, on the end of the shaft to each wing, and there bent, and running to the back of the adjacent wing, as shown.

On the shaft F is fastened a collar, I, having a slotted ange, m, projecting from the same. To this ange the eccentric J is fastened by set-screws u passing through the slots in the flange. By this means the eccentric may be adjustedto regulate the stroke, as required.

Around the eccentric J is the usual strap or band and rod K, the latter being connected with the pump-rod L by a swivel-joint, p.

Opposite the inner end of the shaftF, through the arm of the turn-table, is' fastened a rod or spindle, s, on the upper end of which is pivoted a hub, M. In this hub is screwed or otherwise fastened the shank of the main vane N, the normal position of which is in a'line with the shaft F, it being held in such position by means of a spring, t, having one end fastened to the vane, and the other end wound around and fastened to the spindle s.

o is a brace secured to the vane N, and extending to the lower end of the spindle s, where the end of the brace is forked or split to t in a groove on the spindle.

On the side of the hub M is pivoted a shank or lever, O, which carries at its upper end a small regulating-vane, P. Below the pivotpoint the shank or lever O has a bend or curve, w, and to this is attached an arm, B, with weight S at the lower end. This weight holds the shank or lever O in a vertical position,

with the curve or bend w resting against a curved arm, a', projecting from the shaft bearing on the turn-table.

When the wind increases the vane P will move backward and down-ward more or less, which movement causes the curved part w to work against the arm c', and this causes the hub M, with the main vane attached to it, to turn on the spindle s, and thus throw the wheel moreor less out of the wind.

We claim-L- 1. The bed-platerA, formed with the hub B, having a circumferential groove, a, to receive the rollers b, for supporting the turn-table, substantially as herein set forth. p

2. The turn-table lD, constructed as deoted to the side of the hub M, and provided with curved part w and weighted Ialrm R, in combination with the curved arm a! and main vane N, substantially as and for the purposes herein set forth.

In testimony that we claim the above we have hereunto subscribed our names in the presence of two witnesses.

J AGOB LONGYEAR. DANIEL W. CLARK. Witnesses:

DEWITT C. J oHNsoN, ORLANDO A. BOYD. 

